CN103289705A - Nano saline alkali soil improvement agent and preparation technology thereof - Google Patents
Nano saline alkali soil improvement agent and preparation technology thereof Download PDFInfo
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- CN103289705A CN103289705A CN2013101712672A CN201310171267A CN103289705A CN 103289705 A CN103289705 A CN 103289705A CN 2013101712672 A CN2013101712672 A CN 2013101712672A CN 201310171267 A CN201310171267 A CN 201310171267A CN 103289705 A CN103289705 A CN 103289705A
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Abstract
The invention discloses a nano saline alkali soil improvement agent. The nano saline alkali soil improvement agent comprises the following components according to a formula: 48-92wt% of ardealite, 0.001-5wt% of boric acid, 0.01-10wt% of zinc sulphate, 2-30wt% of urea phosphate, 1-35wt% of potassium fulvic acid and 0.001-5wt% of nano photocatalyst. The nano saline alkali soil improvement agent contains the nano photocatalyst, and heavy metal content in ardealite can be reduced by utilizing photochemical characteristics of the nano photocatalyst; soil source microorganisms of disease are killed by utilizing sterilization characteristic of a nano material; besides, surface activation performance of the nano material is utilized for improving ion exchange performance of the improvement agent and improving fertilizer efficiency of the improvement agent; and meanwhile, the problems that a contact area between a calcium preparation and soil particles is small as particles of a calcium preparation are larger and the capacity for replacing Na<+> in soil colloid by virtue of Ca<2+> is poorer in an existing salinity soil improvement agent are solved.
Description
Technical field
The present invention relates to a kind of saline-alkali soil conditioner.
Background technology
According to United Nations's incomplete statistics, there are about 1,000,000,000 hectares of all kinds of saline soil in the whole world, and have 1.2 * 10 every year approximately
5Ha is irrigateed land and is lost productivity because of salinization.Therefore, the research saline-alkali soil modifying agent is to guarantee 1,800,000,000 mu of impregnable important leverages of arable land red line of China.
At present, both at home and abroad aspect production, have a large amount of achievement in research and product in the research of soil conditioner.Improving saline soil agent research more single modifying agents such as zeolite, flyash, mud, green manure, polyacrylamide are arranged, but it exists improved effect not comprehensively or in various degree problems such as negative impact are arranged.In order further to improve the improved effect of soil improvement agent, reduce its negative impact, more and more researchers is with different modifying agent compounding applications, but the method for compounding application is still the problem that is worth discussion, be that the improvement that raw material development Multifunction soil improvement agent carries out low productive soil is the focus of present soil improvement agent research with natural materials (particularly agricultural wastes) in addition, but objectionable impurities (as heavy metal, pathogenic micro-organism) how to control waste remain further to be explored.For this reason, the surface effects of patent utilization nano material of the present invention, small-size effect, macro quanta tunnel effect reduce in the phosphogypsum heavy metal content and kill soil pathogeny microorganism, improve the fertilizer efficiency of modifying agent.Simultaneously, solve in the existing improving saline soil agent calcium preparation because of particle is big and the soil particle contact surface is less and modifying agent in Ca
2+Na in the displacement soil colloid
+Problems such as ability is relatively poor.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defective, and high fertilizer efficiency, nanometer saline-alkali soil conditioner that cost is low are provided;
Another object of the present invention provides the preparation technology of above-mentioned nanometer saline-alkali soil conditioner.
Purpose of the present invention is come specific implementation by the following technical programs:
A kind of nanometer saline-alkali soil conditioner, each recipe ingredient is as follows,
A kind of nanometer saline-alkali soil conditioner, each recipe ingredient is as follows,
Phosphogypsum 48-92wt%, boric acid 0.001-5 wt %, zinc sulfate 0.01-10 wt %, Ureaphil 2-30 wt %, potassium fulvate 1-35 wt %, nano-photocatalyst 0.001-5 wt %,
Wherein, described nano-photocatalyst is ZnO, TiO
2, Fe
3O
4, SiO
2One or more.
As preferred version, above-mentioned nanometer saline-alkali soil conditioner, each recipe ingredient is as follows,
Phosphogypsum 52-88 wt %, boric acid 0.001-2 wt %, zinc sulfate 0.01-3 wt %, Ureaphil 2-25 wt %, potassium fulvate 1-25 wt %, nanocatalyst 0.001-5 wt %.
More excellent, above-mentioned nanometer saline-alkali soil conditioner, each recipe ingredient is as follows,
Phosphogypsum 90 wt %, boric acid 1 wt %, zinc sulfate 1 wt %, Ureaphil 2 wt %, potassium fulvate 4 wt %, nanocatalyst 2 wt %.
Described nano-photocatalyst is TiO
2
Each component effect is as follows in the above-mentioned prescription:
Phosphogypsum: contain a large amount of calcium sulfate and free acid, wherein free acid has the effect of regulating salinization soil pH value, calcium sulfate its mainly to act on be balance salinification soil salt ion ratio and for replacing the Na in the soil
+Ca is provided
2+
Boric acid: have additional calcareous soil boron deficiency and promote that carbohydrate synthesizes and the effect of transporting in the salinization soil plant materials.
Zinc sulfate: having for plant-growth provides essential Zn
2+, remaining acid SO
4 2-, be conducive to decompose the calcium salt of alkaline soil, discharge Ca
2+, reduce soil pH value simultaneously, reduce effects such as basicity.
Ureaphil: have effects such as the plain deficiency of additional salinization soil nitrogen and phosphorus and adjusting soil pH.
Potassium fulvate: contain macroelement K, multivitamin, trace element, tropina, nucleic acid, surface-active substance and somatomedin (biologically active substance) etc.Have antiacid alkali, anti-oxidant, divalent cation is had very strong sequestering power, therefore can form organic chelated microelement with metal ions such as Fe, Cu, Zn, Mn, Ca, can promote plant to absorption and the utilization of mineral substance.
Nano-photocatalyst: have surface effects, can promote the Na in the salinization soil
+With the Ca in the phosphogypsum
2+Quick exchange and the effect that reduces heavy metal content in the phosphogypsum, but doping vario-property.In addition, nano-photocatalyst has the effect of similar plants growth regulator, promotes the effect of plant-growth.
The preparation technology of above-mentioned nanometer saline-alkali soil conditioner comprises the steps,
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 10-30 days under the 190-400nm UV-light in wavelength region, stirred 1 time, and stirred 2-5 time altogether in every accumulation 3-5 days;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
Described step 2) in, under the 200-260nm UV-irradiation, piled up 7-15 days best results.
Beneficial effect of the present invention:
Nanometer saline-alkali soil conditioner of the present invention wherein contains nano-photocatalyst, utilizes its photochemical properties can reduce heavy metal content in the phosphogypsum; Utilize the sterilization idiocratic of nano material to kill soil pathogeny microorganism; In addition, utilize the surfactant property of nano material, improve the ion-exchange performance in the modifying agent, improve the fertilizer efficiency of modifying agent.Simultaneously, solve in the existing improving saline soil agent calcium preparation because of particle is big and the soil particle contact surface is less and modifying agent in Ca
2+Na in the displacement soil colloid
+Problems such as ability is relatively poor.
The nanometer saline-alkali soil conditioner that the present invention makes is used for the improvement salinization soil, and the free acid that boric acid, Ureaphil and the phosphogypsum that utilization wherein contains contains itself can reduce salinization soil pH; Utilize the calcium ion that contains in the phosphogypsum and the potassium ion balance soil salt ion in the potassium fulvate, reduce salt ion to the harm of seed and seedling; Utilize boric acid and zinc sulfate to replenish the problem of salinization soil boron, zinc deficiency, promote the physiological metabolism of various gourd, fruit and vegetables and land for growing field crops farm crop; Utilize the humic acid stimulating plant root growth in the potassium fulvate, excite the plant biological activity, improve plant fixed nitrogen, phosphorus decomposing, activation potassium, improve chemical fertilizer utilization ratio.Results from pot experiment test shows: use this modifying agent 200kg/ mu at salinization soil, soil pH contrast (CK) reduces 0.22-0.41 unit, soil salt content contrast (CK) reduces by 12.5%, the average plant height of wheat contrast increases 15cm, the average contrast of spike length increases 2.72cm, and output contrast increases by 10.6%.Indoor soil-column leaching simulation test shows: use this modifying agent 200kg/ mu at salinization soil, contrast increase by 61% of salt content in the leaching liquor, contrast increase by 24% of water-soluble sodium content in the leaching liquor, this explanation is used this modifying agent at salinization soil, and the soil desalting effect is obvious.
The present invention has also that the raw materials cost price is low, market is bought easily, and process for producing is simple, the beneficial effect that preparation cost is low.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in restriction the present invention.
Embodiment 1:
A kind of nanometer saline-alkali soil conditioner, filling a prescription is: phosphogypsum 90 wt %, boric acid 1 wt %, zinc sulfate 1 wt %, Ureaphil 2 wt %, potassium fulvate 4 wt %, TiO
2Press the mixture 2 wt % of mass ratio 1:1 with ZnO.
Its preparation technology comprises the steps:
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 30 days under the 190nm UV-light in wavelength region, every accumulation was stirred 1 time in 3-5 days, stirred 2-5 time altogether;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
Embodiment 2:ZnO, TiO
2, Fe
3O
4, SiO
2
A kind of nanometer saline-alkali soil conditioner, filling a prescription is: phosphogypsum 70 wt %, boric acid 5 wt %, zinc sulfate 10 wt %, Ureaphil 2 wt %, potassium fulvate 8 wt %, ZnO 5 wt %.
Its preparation technology comprises the steps:
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 10 days under the 400nm UV-light in wavelength region, every accumulation was stirred 1 time in 3-5 days, stirred 2-5 time altogether;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
Embodiment 3:
A kind of nanometer saline-alkali soil conditioner, filling a prescription is: phosphogypsum 48 wt %, boric acid 5 wt %, zinc sulfate 10 wt %, Ureaphil 30 wt %, potassium fulvate 3 wt %, Fe
3O
44 wt %.
Its preparation technology comprises the steps:
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 15 days under the 200nm UV-light in wavelength region, every accumulation was stirred 1 time in 3-5 days, stirred 2-5 time altogether;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
Embodiment 4:
A kind of nanometer saline-alkali soil conditioner, filling a prescription is: phosphogypsum 88 wt %, boric acid 2 wt %, zinc sulfate 0.01 wt %, Ureaphil 4wt %, potassium fulvate 5 wt %, nanocatalyst 0.99 wt %.
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 7 days under the 260nm UV-light in wavelength region, every accumulation was stirred 1 time in 3-5 days, stirred 2-5 time altogether;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
Embodiment 5:
The nanometer saline-alkali soil conditioner, each recipe ingredient is as follows,
Phosphogypsum 52 wt %, boric acid 0.15 wt %, zinc sulfate 0.85 wt %, Ureaphil 22 wt %, potassium fulvate 22wt %, TiO
23 wt %.
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 9 days under the 240nm UV-light in wavelength region, every accumulation was stirred 1 time in 3-5 days, stirred 2-5 time altogether;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
Embodiment 6:
The nanometer saline-alkali soil conditioner, each recipe ingredient is as follows,
Phosphogypsum 62 wt %, boric acid 1 wt %, zinc sulfate 2.5wt %, Ureaphil 17 wt %, potassium fulvate 14 wt %, ZnO and SiO
2Press the mixture 3.5 wt % of mass ratio 2:1.
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 20 days under the 320nm UV-light in wavelength region, every accumulation was stirred 1 time in 3-5 days, stirred 2-5 time altogether;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
The above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. nanometer saline-alkali soil conditioner, it is characterized in that: each recipe ingredient is as follows,
Phosphogypsum 48-92 wt %, boric acid 0.001-5 wt %, zinc sulfate 0.01-10 wt %, Ureaphil 2-30 wt %, potassium fulvate 1-35 wt %, nano-photocatalyst 0.001-5 wt %,
Wherein, described nano-photocatalyst is ZnO, TiO
2, Fe
3O
4, SiO
2One or more.
2. nanometer saline-alkali soil conditioner according to claim 1, it is characterized in that: each recipe ingredient is as follows,
Phosphogypsum 52-88 wt %, boric acid 0.001-2 wt %, zinc sulfate 0.01-3 wt %, Ureaphil 2-25 wt %, potassium fulvate 1-25 wt %, nanocatalyst 0.001-5 wt %.
3. nanometer saline-alkali soil conditioner according to claim 1, it is characterized in that: each recipe ingredient is as follows,
Phosphogypsum 90 wt %, boric acid 1 wt %, zinc sulfate 1 wt %, Ureaphil 2 wt %, potassium fulvate 4 wt %, nanocatalyst 2 wt %.
4. according to each described nanometer saline-alkali soil conditioner of claim 1 to 3, it is characterized in that: described nano-photocatalyst is TiO
2
5. according to the preparation technology of each described nanometer saline-alkali soil conditioner of claim 1 to 3, it is characterized in that: comprise the steps,
1) phosphogypsum with formula ratio is ground into powder with pulverizer or ball mill, and is standby;
2) with the phosphogypsum powder of step 1) gained and the abundant mixing of nanocatalyst of formula ratio, be that irradiation was piled up 10-30 days under the 190-400nm UV-light in wavelength region, stirred 1 time, and stirred 2-5 time altogether in every accumulation 3-5 days;
3) with step 2) mixture of gained and the boric acid of formula ratio, zinc sulfate, Ureaphil, potassium fulvate stirring and evenly mixing at ambient temperature, get final product.
6. the preparation technology of nanometer saline-alkali soil conditioner according to claim 5 is characterized in that: described step 2), piled up 7-15 days under the 200-260nm UV-irradiation.
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Cited By (9)
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|---|---|---|---|---|
| CN105272766A (en) * | 2015-11-26 | 2016-01-27 | 北京清迈华清控股(集团)有限公司 | Method for producing novel saline-alkaline restoration fertilizer by utilizing high-silicon iron tailings and product |
| CN105315104A (en) * | 2015-11-26 | 2016-02-10 | 北京清迈华清控股(集团)有限公司 | Method for producing fertilizer special for desertification control by means of high-silicon iron tailings and product |
| CN105399578A (en) * | 2015-12-08 | 2016-03-16 | 成都尼达罗农业科技有限公司 | Water-soluble fertilizer for improving alkaline soil and preparation method of water-soluble fertilizer |
| CN107954810A (en) * | 2017-12-05 | 2018-04-24 | 新疆大学 | A kind of fulvic acid potassium-phosphorus urea fertilizer dedicated to alkaline land and preparation method thereof |
| CN109321255A (en) * | 2018-11-05 | 2019-02-12 | 塔里木大学 | For improveing the composition on heavy salinized ground |
| CN109496663A (en) * | 2018-12-21 | 2019-03-22 | 北京碧青园生态环境科技有限公司 | A kind of raising heavy salinized ground soil species tree planting technique and application |
| CN110684536A (en) * | 2018-07-06 | 2020-01-14 | 中化重庆涪陵化工有限公司 | Phosphogypsum micron soil conditioner and preparation method thereof |
| CN111943778A (en) * | 2020-08-20 | 2020-11-17 | 甘肃省农业科学院土壤肥料与节水农业研究所 | Organic agricultural acid soil potassium conditioner |
| CN115812377A (en) * | 2022-12-13 | 2023-03-21 | 西北农林科技大学 | Secondary salinization grassland treatment method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105272766A (en) * | 2015-11-26 | 2016-01-27 | 北京清迈华清控股(集团)有限公司 | Method for producing novel saline-alkaline restoration fertilizer by utilizing high-silicon iron tailings and product |
| CN105315104A (en) * | 2015-11-26 | 2016-02-10 | 北京清迈华清控股(集团)有限公司 | Method for producing fertilizer special for desertification control by means of high-silicon iron tailings and product |
| CN105399578A (en) * | 2015-12-08 | 2016-03-16 | 成都尼达罗农业科技有限公司 | Water-soluble fertilizer for improving alkaline soil and preparation method of water-soluble fertilizer |
| CN107954810A (en) * | 2017-12-05 | 2018-04-24 | 新疆大学 | A kind of fulvic acid potassium-phosphorus urea fertilizer dedicated to alkaline land and preparation method thereof |
| CN110684536A (en) * | 2018-07-06 | 2020-01-14 | 中化重庆涪陵化工有限公司 | Phosphogypsum micron soil conditioner and preparation method thereof |
| CN109321255A (en) * | 2018-11-05 | 2019-02-12 | 塔里木大学 | For improveing the composition on heavy salinized ground |
| CN109496663A (en) * | 2018-12-21 | 2019-03-22 | 北京碧青园生态环境科技有限公司 | A kind of raising heavy salinized ground soil species tree planting technique and application |
| CN111943778A (en) * | 2020-08-20 | 2020-11-17 | 甘肃省农业科学院土壤肥料与节水农业研究所 | Organic agricultural acid soil potassium conditioner |
| CN111943778B (en) * | 2020-08-20 | 2022-03-25 | 甘肃省农业科学院土壤肥料与节水农业研究所 | Organic agricultural acid soil potassium conditioner |
| CN115812377A (en) * | 2022-12-13 | 2023-03-21 | 西北农林科技大学 | Secondary salinization grassland treatment method |
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